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Cushion|Lab Grown|IGI

1.25ct D FL Cushion Lab Grown Diamond

VG • D/FL • IGI LG831698075

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG831698075

Diamond specifications and retailer prices

From $643 AUD
As of November 4, 2026
Save $2,935 AUD (82%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,578 AUD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.25ct lab-grown cushion diamond

This 1.25ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG831698075 or 831698075. Listed at 14 retailers as of November 4, 2026, with prices from $643 to $3,578, a $2,935 spread on the same certified stone. Brilliant Earth lists it at $3,578. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.25
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831698075
Dimensions7.80 × 5.42 × 3.69 mm
L/W Ratio1.44
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.80 mm5.42 mm1.25 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831698075
Side View
Table 57.0%Crown 34.7°Girdle: MED-THKPavilion 35.5°Culet: NoneDepth 68.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $3,578 AUD|Low: $643 AUD|High: $3,906 AUD|Avg: $1,490 AUD|-8.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 5, 2026
Retailer 7$643 AUD
Retailer 13$643 AUD
Retailer 6$717 AUD
Retailer 11$720 AUD
Retailer 9$1,006 AUD
Retailer 2$1,116 AUD
Retailer 3$1,234 AUD
Retailer 5$1,237 AUD
Retailer 4$1,243 AUD
Retailer 8$1,578 AUD
Retailer 12$2,073 AUD
Retailer 10$2,403 AUD
Retailer 14$2,800 AUD
Brilliant Earth$3,578 AUD

12 data points across 14 retailers

14 retailers$643 AUD to $3,578 AUD

A
Cheapest Retailer
-
$643 AUD
Final sale: no returns
A
Retailer 2
-
$643 AUD
View
Retailer 3
-
$717 AUD
View
Price last confirmed 11 days ago
A
Retailer 4
-
$720 AUD
View
A
Retailer 5
-
$1,006 AUD
View
A
Retailer 6
-
$1,116 AUD
View
A
Retailer 7
-
$1,234 AUD
View
A
Retailer 8
-
$1,237 AUD
View
A
Retailer 9
-
$1,243 AUD
View
B+
Retailer 10
-
$1,578 AUD
View
B+
Retailer 11
-
$2,073 AUD
View
B
Retailer 12
-
$2,403 AUD
View
B
Retailer 13
-
$2,800 AUD
View
Most Expensive
B
Brilliant Earth
22262590A · Nov 4
$3,578 AUD
$2,510 USD
View
13 more retailers have this diamond
Prices start from $643 AUDSave up to $2,935 AUD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.25ct Cushion
$643 AUD